http://news.bbc.co.uk/2/hi/science/nature/3520384.stm
Very nice, Clones..! Rock music indeed.
Thousands of years ago there was an official percussion instrument in China, with granite stones of different sizes hanging from ropes in a construction like the tubular bells nowadays.
wow! I wish I could hear that - and these rocks in India
Checked out : The chinese instrument is called 'Bianqing'.
This instrument category is called 'Lithophones'. See the Wiki about it :
http://en.wikipedia.org/wiki/Lithophone
Such instruments are also used quite recently :
http://www.youtube.com/watch?v=gtHRPqFDg1k
wow! that is cool!!!